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binubtharayil August 13, 2009 13:26

UDF for turbulent flow

Can anyone help in writing a udf for specifying velocity profile for turbulent flow....?
I wrote one and saved as a plain text with extension *.c.
It builds while running in fluent, but when trying to load,
A message comes like,

Error: open_udf_library: No such file or directory.

Any help is appreciated in advance...

tstorm August 13, 2009 18:07

Fluent has an example for a parabolic velocity inlet - have you looked at that? Sounds like you would just need to follow that exactly, with the exception that you'd change the equation for the velocity profile.

tstorm August 13, 2009 18:08

Also, Fluent stores a log file in the directory where you're compiling your UDF (if you're using it as a compiled UDF.) Check that file for a description of the problem Fluent ran into loading the library.

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